CN114007166B - Method and device for customizing sound, electronic equipment and storage medium - Google Patents
Method and device for customizing sound, electronic equipment and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 62
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- 238000012790 confirmation Methods 0.000 claims abstract description 57
- 230000004044 response Effects 0.000 claims abstract description 28
- 230000005236 sound signal Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 5
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- 238000005516 engineering process Methods 0.000 description 10
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- 238000013473 artificial intelligence Methods 0.000 description 5
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- 230000008447 perception Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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Abstract
The invention discloses a method, a device, electronic equipment and a storage medium for customizing sound, wherein test audio corresponding to each test frequency point in a plurality of test frequency points is played according to a preset sound volume sequence, the plurality of test frequency points are selected from a preset frequency range, the minimum sound volume is marked as audible minimum sound volume in response to receiving a first confirmation instruction of the minimum sound volume of each test frequency point, the maximum sound volume is marked as audible maximum sound volume in response to receiving a second confirmation instruction of the maximum sound volume, a minimum sound volume equal sound line is generated according to the audible minimum sound volume corresponding to each test frequency point, a maximum sound volume equal sound line is generated according to the audible maximum sound volume corresponding to each test frequency point, sound is customized according to the minimum sound volume equal sound line and the maximum sound volume equal sound line, the user is ensured to hear the minimum sound, the maximum sound of the user is ensured to be within an acceptable range, and the hearing feeling of the user to the sound effect of a vehicle is improved.
Description
Technical Field
The present disclosure relates to the field of vehicle technologies, and in particular, to a method and apparatus for customizing sound, an electronic device, and a storage medium.
Background
With more families having cars, automobiles gradually become a movable information entertainment platform, and the requirements of users on vehicle-mounted sound equipment are also higher.
In practical applications, the sound sensitivity of different people to different frequencies is different, for example, the old is insensitive to high-frequency sounds, and the baby is sensitive to high-frequency sounds, so that the subjective perception of the vehicle-mounted sound is different for each user. It can be seen that customizing different sound effects for different users is a problem that needs to be solved at present.
Disclosure of Invention
The present disclosure provides a method and apparatus for customizing sound, an electronic device, and a storage medium, which aim to customize sound according to sensitivity of different users to sound frequency, so as to improve hearing feeling of the users.
According to an aspect of the present disclosure, there is provided a method of customizing sound, comprising:
playing test audio corresponding to each of a plurality of test frequency points according to a preset volume sequence, wherein the plurality of test frequency points are selected from a preset frequency range;
in response to receiving a first confirmation instruction of the minimum volume of each test frequency point, marking the minimum volume as an audible minimum volume;
In response to receiving a second confirmation instruction of the maximum volume of each test frequency point, marking the maximum volume as an audible maximum volume;
generating a minimum volume equal-sound line according to the audible minimum volume corresponding to each test frequency point, and generating a maximum volume equal-sound line according to the audible maximum volume corresponding to each test frequency point;
and customizing sound according to the minimum volume equal-loudness line and the maximum volume equal-loudness line.
Optionally, customizing the sound according to the minimum volume equal loudness contour and the maximum volume equal loudness contour includes:
taking the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point, and generating a third equal-loudness line according to the average value; and
and customizing the sound according to the third equal loudness line.
Optionally, customizing the sound according to the minimum volume equal loudness contour and the maximum volume equal loudness contour includes:
acquiring a reference equal-loudness line, wherein the reference equal-loudness line is an equal-loudness line obtained by carrying out sound customization according to big data;
comparing the third equal-loudness line with the reference equal-loudness line, and determining whether the volume of the same test frequency point is the same;
If the volume of the third equal-loudness line is lower than the volume of the reference equal-loudness line at the same test frequency point, compensating the volume of the third equal-loudness line; and
and if the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point, attenuating the volume of the third equal-loudness line.
Optionally, the method further comprises:
and storing the customized sound in association with a user who issues the first confirmation instruction and the second confirmation instruction.
Optionally, the method further comprises:
in response to not receiving a first confirmation instruction of the minimum volume of each test frequency point, determining the minimum volume of the test audio as the audible minimum volume; and/or
And in response to not receiving a second confirmation instruction of the maximum volume of each test frequency point, determining the maximum volume of the test audio as the audible maximum volume.
Optionally, playing the test audio corresponding to each of the plurality of test frequency points according to the preset volume sequence includes:
acquiring an audio signal corresponding to the test audio; and
after the audio signals are processed by digital signals, controlling the volume according to the preset playing time and the preset volume sequence, and playing the audio signals processed by each of the plurality of test frequency points through a loudspeaker.
Optionally, selecting a plurality of test frequency points in a frequency range of 20Hz-20KHz includes:
dividing the frequency range into 32 frequency intervals according to 1/3 octaves; and
and selecting the frequency points corresponding to the endpoints of the 32 frequency intervals as the plurality of test frequency points.
Optionally, selecting a plurality of test frequency points in a frequency range of 20Hz-20KHz includes:
dividing the frequency range into 12 frequency intervals on average; and
and selecting the frequency points corresponding to the endpoints of the 12 frequency intervals as the plurality of test frequency points.
According to another aspect of the present disclosure, an embodiment of the present application further provides an apparatus for customizing sound, including:
the playing unit is used for playing the test audio corresponding to each of a plurality of test frequency points according to a preset volume sequence, wherein the plurality of test frequency points are selected from a preset frequency range;
a first marking unit, configured to mark a minimum volume of each of the test frequency points as an audible minimum volume in response to receiving a first confirmation instruction of the minimum volume;
a second marking unit, configured to mark the maximum volume as an audible maximum volume in response to receiving a second confirmation instruction of the maximum volume for each of the test frequency points;
The generating unit is used for generating a minimum volume equal-sound line according to the audible minimum volume corresponding to each test frequency point and generating a maximum volume equal-sound line according to the audible maximum volume corresponding to each test frequency point;
and the customizing unit is used for customizing the sound according to the minimum volume equal-loudness line and the maximum volume equal-loudness line.
Optionally, the customizing unit includes:
the calculation module is used for taking the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point;
the generation module is used for generating a third equal-loudness line according to the mean value obtained by the calculation module; and
and the customizing module is used for customizing the sound according to the third equal-loudness lines generated by the generating module.
Optionally, the customizing unit further includes:
the acquisition module is used for acquiring a reference equal-loudness line, wherein the reference equal-loudness line is an equal-loudness line obtained by carrying out sound customization according to big data;
the comparison module is used for comparing the third equal-loudness line with the reference equal-loudness line and determining whether the volume of the same test frequency point is the same;
the compensation module is used for compensating the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line is lower than the volume of the reference equal-loudness line at the same test frequency point; and
And the attenuation module is used for attenuating the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point.
Optionally, the method further comprises:
and the storage unit is used for storing the customized sound in association with a user who sends the first confirmation instruction and the second confirmation instruction.
Optionally, the method further comprises:
a first determining unit configured to determine, in response to not receiving a first confirmation instruction of a minimum volume for each test frequency point, the minimum volume of the test audio as the audible minimum volume;
and the second determining unit is used for determining the maximum volume of the test audio as the audible maximum volume in response to the fact that a second confirmation instruction of the maximum volume of each test frequency point is not received.
Optionally, the playing unit includes:
the acquisition module is used for acquiring an audio signal corresponding to the test audio; and
and the playing module is used for controlling the volume according to the preset playing time and the preset volume sequence after the audio signal is processed by the digital signal processing, and playing the audio signal processed by each of the plurality of test frequency points through a loudspeaker.
Optionally, the preset frequency range is 20Hz-20KHz.
Optionally, the apparatus further includes:
the first dividing unit is used for dividing the frequency range into 32 frequency intervals according to 1/3 octaves; and
the first selecting unit is used for selecting the frequency points corresponding to the endpoints of the 32 frequency intervals as the plurality of test frequency points.
Optionally, the apparatus further includes:
a second dividing unit for equally dividing the frequency range into 12 frequency intervals; and
and the second selecting unit is used for selecting the frequency points corresponding to the endpoints of the 12 frequency intervals as the plurality of test frequency points.
According to another aspect of the present disclosure, there is provided an electronic device including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the preceding aspect.
According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the preceding aspect.
According to another aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements a method as described in the preceding aspect.
According to the method, the device, the electronic equipment and the storage medium for customizing the sound, test audio corresponding to each frequency point in a plurality of test frequency points is played according to a preset sound volume sequence, firstly, the minimum sound volume is marked as an audible minimum sound volume in response to receiving a first confirmation instruction of the minimum sound volume of each test frequency point, secondly, the maximum sound volume is marked as an audible maximum sound volume of each test frequency point in response to receiving a second confirmation instruction of the maximum sound volume of each test frequency point, a minimum sound volume equal sound line is generated according to the audible minimum sound volume corresponding to each test frequency point, and finally, a maximum sound volume equal sound line is generated according to the audible maximum sound volume equal sound line and the maximum sound volume equal sound line, and finally, the hearing feeling of a user on the vehicle sound effect can be greatly improved by customizing the sound in a mode of ensuring that the minimum sound is heard by the user within an acceptable range.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The drawings are for a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:
FIG. 1 is a flow chart of a method for customizing sound according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a mean equal loudness line of a range of audible sounds of the human ear provided by embodiments of the present disclosure;
FIG. 3 is a flow chart of another method for customizing sound provided by an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a device for customizing sound according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another device for customizing sound according to an embodiment of the present disclosure;
fig. 6 is a schematic block diagram of an example electronic device 600 provided by an embodiment of the disclosure.
Detailed Description
Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Methods, apparatuses, electronic devices, and storage media for customizing sound according to embodiments of the present disclosure are described below with reference to the accompanying drawings.
Because the physiological characteristics of the ear hearing of each user are different, the sensitivity of each user to different frequencies is different, so that the subjective perception of each user to a sound system is different, at present, the sound effect can be played through an equalizer in a common automobile machine, but the demands of most people cannot be met because the adjustable space of the equalizer of the automobile machine is small and the accuracy is low.
In the disclosure, in order to achieve that a user adjusts an equalizer to an optimal audio-visual state, the embodiment of the application automatically generates equalizer parameters most suitable for the user through physiological characteristics of ear hearing of the user in an intelligent personalized mode.
Fig. 1 is a flowchart of a method for customizing sound according to an embodiment of the present disclosure. As shown in fig. 1, the method comprises the steps of:
101. and playing the test audio corresponding to each test frequency point in the plurality of test frequency points according to the preset volume sequence. Wherein the plurality of test frequency points are selected from a preset frequency range.
The method of the embodiment of the application is applied to an application scene that a new user plays music by using an on-vehicle player for the first time, and the method for customizing the sound is preferably carried out in a vehicle stationary state and a safe environment.
The following embodiments will be described with reference to the case where the preset frequency range is 20Hz-20KHz, and it should be noted that the description is not intended to limit the preset frequency range to only 20Hz-20KHz, and other frequency ranges can still be implemented by adopting the sound customization method of the present disclosure based on the same principle.
Under theoretical conditions, sound sources with different volume values at each frequency in a preset frequency range can be directly played, and the sound effect obtained by the customization mode is good, but the consumption time of customizing sound is greatly increased due to the fact that the number of the frequencies is too large.
If the setting is too large, the accuracy of the customized sound can be greatly reduced, the user's meeting state can not be achieved, and if the setting is too small, too much customized time can be occupied.
In practical applications, in order to save resource overhead, the test audio may be played in a preset volume sequence, where, for example, the preset volume sequence is that the volume starts to play from the minimum volume value, instead of playing from the volume of 0dB, so that no matter how high or low the test frequency point is, the human ear cannot acquire the sound, so that playing from the minimum volume may be set, for example, the volume minimum value may be set to 10dB, which is not limited in embodiments of the present application.
After confirming the test frequency points, sequentially playing each test frequency point by adopting different volume, for example, sequentially playing sound sources from 10dB to 130dB, emitting sound from an in-car sound system, and triggering a first confirmation instruction by a physical key, screen touch or voice interaction mode on an operation console/steering wheel when a user hears sound (minimum volume), wherein the first confirmation instruction is used for determining the minimum volume of the test frequency point heard by the user; and continuing to play other sound volumes of the test frequency point, and triggering a second confirmation instruction by a physical key, screen touch or voice interaction mode on the operation table/steering wheel when the user determines that a certain sound volume is the maximum sound volume which can be born by the user, wherein the second confirmation instruction is used for determining the maximum sound volume of the test frequency point which is heard by the user.
102. In response to receiving a first confirmation instruction of minimum volume for each test frequency point, marking the minimum volume as audible minimum volume.
103. And in response to receiving a second confirmation instruction of the maximum volume of each test frequency point, marking the maximum volume as an audible maximum volume.
104. A minimum volume equal-loudness line is generated from the audible minimum volume for each test frequency bin, and a maximum volume equal-loudness line is generated from the audible maximum volume for each test frequency bin.
For clarity of explanation of this embodiment, as shown in fig. 2, a schematic diagram of an average equal-loudness line of an audible sound range of a human ear provided in this embodiment is shown, each test frequency point includes an audible minimum volume and a maximum volume, the audible minimum volume and the maximum volume in each test frequency point are respectively connected to obtain the minimum equal-loudness line and the maximum equal-loudness line, the dotted line at the lowest end in fig. 2 is the minimum equal-loudness line that can be heard by the human ear, and the solid line at the uppermost end in fig. 2 is the maximum equal-loudness line that can be accepted by the human ear.
105. And customizing the sound according to the minimum volume equal loudness line and the maximum volume equal loudness line.
And customizing the sound effect of the vehicle according to the volume between the minimum volume equal-loudness line and the maximum volume equal-loudness line so as to ensure that a user can hear the minimum sound effect and maintain the emitted sound effect within the range of the maximum volume equal-loudness line, thereby ensuring that the sound heard by the user is not harsher.
In practical applications, the essence of the customized sound is to customize sound parameters according to the minimum volume equal loudness contour and the maximum volume equal loudness contour, and the sound parameters are decoded and read by the equalizer.
According to the method for customizing the sound, test audio is played from small to large according to the sound volume of each of a plurality of test frequency points, firstly, the minimum sound volume is marked as an audible minimum sound volume in response to receiving a first confirmation instruction of the minimum sound volume of each test frequency point, secondly, the maximum sound volume is marked as an audible maximum sound volume of each test frequency point in response to receiving a second confirmation instruction of the maximum sound volume of each test frequency point, a minimum sound volume equal sound line is generated according to the audible minimum sound volume, and a maximum sound volume equal sound line is generated according to the audible maximum sound volume, finally, sound is customized according to the minimum sound volume equal sound line and the maximum sound volume equal sound line, and the hearing feeling of a user on the vehicle sound effect can be greatly improved in a customized sound mode based on the fact that the user can hear the minimum sound and the maximum sound heard by the user can be ensured within an acceptable range.
In the above implementation method, although it is possible to ensure that the user can hear the minimum sound and the maximum volume heard can be received without a sense of discomfort, in an extreme scene, if an audible minimum equal-loudness line/an audible maximum equal-loudness line is directly used when customizing the sound, the customization effect can be achieved. In order to optimize the auditory perception of the user, as one implementation of the embodiments of the present application, when customizing the sound according to the minimum volume contour and the maximum volume contour, the following manner may be used, but is not limited to: and taking the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point, generating a third equal-loudness line according to the average value, and customizing the sound according to the third equal-loudness line. And generating the personalized sound effect exclusive to the user by depending on the third equal-loudness line corresponding to the mean value when customizing the sound.
In order to make the sound customized by the user smoother in auditory sense, the method in the embodiment further provides a method for customizing sound effects according to the minimum volume equal-loudness line and the maximum volume equal-loudness line, as shown in fig. 3, where the method includes:
201. and acquiring a reference equal-loudness line, wherein the reference equal-loudness line is an equal-loudness line obtained by carrying out sound customization according to big data.
The reference equal loudness lines are obtained according to the average value of third equal loudness lines of a plurality of users, and are aimed at referencing the voices of other users on the basis of the customized voices, so that the customized voices are smoother.
The test frequency points in the reference equal-frequency line comprise full frequencies in the audible frequency range of human ears, so that the test frequency points in any frequency can be referred.
202. And comparing the third equal-loudness line with the reference equal-loudness line to determine whether the volume of the same test frequency point is the same.
When the volume of the same test frequency point is compared, the volume of the same test frequency point is not comparable to different test frequency points.
203. If the volume of the third equal-loudness line is lower than the volume of the reference equal-loudness line at the same test frequency point, step 204 is executed, and if the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point, step 205 is executed.
204. And compensating the volume of the third equal-loudness line.
The compensation is to increase the volume of the third equal-loudness line, for convenience of understanding, for example, it is assumed that, in the reference equal-loudness line, when the test frequency point is 80Hz, the volume of the reference equal-loudness line is 78dB, and the volume of the third equal-loudness line is 75dB, and in this case, the third equal-loudness line needs to be compensated to any volume of 78dB or 80 dB.
It should be noted that, when compensating the volume of the third equal-loudness line, the volume of the third equal-loudness line should not be too large, if the compensation is too large, not only against the personalized customization of the current user, but also the condition that the sound effect is abrupt may occur, so when compensating, a compensation threshold needs to be referred to, and the threshold is a tested value, for example, set to 10dB, or 5dB, etc., which is not limited in the embodiment of the present application.
205. And attenuating the volume of the third equal-loudness line.
The attenuation is to reduce the volume of the third equal-loudness line, for convenience of understanding, for example, it is assumed that, in the reference equal-loudness line, when the test frequency point is 100Hz, the volume of the reference equal-loudness line is 82dB, and the volume of the third equal-loudness line is 85dB, where the third equal-loudness line needs to be attenuated to 82 dB.
It should be noted that, when the volume of the third equal-loudness line is attenuated, the attenuation volume is too large, if the attenuation volume is too large, the personalized customization of the current user may be violated, and the situation that the sound effect suddenly drops may occur, so when the attenuation is performed, an attenuation threshold needs to be referred to, and the threshold is a tested value, for example, set to 5dB, which is not limited in the embodiment of the present application.
The method shown in fig. 1 is specific to the specific implementation when a new user uses the in-car audio system to play music for the first time, but when the user using the in-car audio system is an old user, the method can directly play the music according to the previously customized sound without restarting the sound customization flow, so that resources can be saved, and the user can be brought to the best driving experience of the vehicle. Therefore, in order to achieve the above object, after customizing the sound, the customized sound is stored in association with the user who issues the first confirmation instruction and the second confirmation instruction. After the user enters the vehicle, whether the user is an old user (the user who has completed the sound customization) can be judged through the camera or the sensor, if so, the stored sound customization parameters are directly called, and the switching is performed according to the sound customization parameters.
When playing the test audio at intervals from small to large in volume for different test frequency points, firstly, obtaining an audio signal corresponding to the test audio, processing the audio signal by a digital signal, and controlling the volume to play the audio from small to large according to a preset playing time and with each frequency point in the plurality of test frequency points through a loudspeaker so as to be perceived by a user. The preset playing time is set for the purpose of enabling the user to trigger the first confirmation command or the second confirmation command, and is not limited to 3 seconds or 5 seconds, for example.
In the implementation process, when the audio playing source is played, a first confirmation instruction or a second confirmation instruction is triggered according to the prompt, but after the audio playing is finished, the first confirmation instruction or the second confirmation instruction triggered by the user is not received, namely, the minimum volume of the test audio is determined to be the audible minimum volume in response to the first confirmation instruction which does not receive the minimum volume of each test frequency point, and/or the maximum volume of the test audio is determined to be the audible maximum volume in response to the second confirmation instruction which does not receive the maximum volume of each test frequency point. If the first confirmation instruction or the second confirmation instruction is not received, prompting the user to restart the voice customization process.
As another implementation manner of the embodiment of the present application, after receiving the first confirmation instruction, in a scenario that the second confirmation instruction is not received along with the increase of the volume, before determining the maximum volume of the test audio as the audible maximum volume, a prompt is sent out whether to determine the maximum volume of the test audio as the audible maximum volume, if the user confirms, the maximum volume of the test audio is directly determined as the audible maximum volume, and if the user does not confirm, the voice customization process is restarted.
The sound customization is successful in two interactions with the user, namely, the first confirmation instruction and the second confirmation instruction triggered by the user are received, and no matter which confirmation instruction is less, the sound customization flow is invalid customization.
The above embodiment also illustrates that when the audible frequency range of the human ear is that a plurality of test frequency points are selected in the frequency range of 20Hz-20KHz, the embodiment of the application is performed in two ways, as follows:
the first selection mode is applied to an application scene aiming at sound customization of a music professional user, the audible frequency range of the human ear is divided into 32 frequency intervals according to 1/3 octaves, frequency points corresponding to endpoints of the 32 frequency intervals are selected to be used as the plurality of test frequency points, for example, 40Hz is frequency multiplication of 20Hz, 3 parts are divided between the two frequencies of 20Hz and 40Hz, 3 frequency intervals are obtained, the frequency points of 20Hz are taken, and the frequency points at 1/3 and 2/3 positions are taken as the test frequency points. 80Hz is the frequency multiplication of 40Hz, equally divide 3 between 40Hz and 80Hz, get 3 frequency intervals, get the frequency point of 40Hz, and get the frequency point of 1/3 and 2/3 and regard as the test frequency point … and so on, get 32 frequency intervals of the point altogether when reaching 20KHz, choose the frequency point that the end point of 32 frequency intervals corresponds as a plurality of test frequency points.
The second selection mode is applied to an application scene of sound customization for non-music professional users, the frequency range is divided into 12 frequency intervals on average, and frequency points corresponding to end points of the 12 frequency intervals are selected as the plurality of test frequency points.
The implementation methods of the two selection modes are consistent, and the difference points are that the frequency interval is divided into one or three, namely, the fine degree of the frequency interval is divided, and the implementation method of the second selection mode can refer to the detailed description of the first selection mode. In summary, by the method for customizing the sound, the user personalized equalizer is intelligently generated by using the physiological auditory information of the user, so that the user's requirement on the sound is met. The intelligent personalized sound effect mode of the user can improve the perception degree and the friendliness of the user and the sound experience of the cockpit.
Fig. 4 is a schematic structural diagram of an apparatus for customizing sound according to an embodiment of the present disclosure, as shown in fig. 4, including:
a playing unit 41, configured to play test audio corresponding to each of a plurality of test frequency points according to a preset volume sequence, where the plurality of test frequency points are selected from a preset frequency range;
A first marking unit 42, configured to mark the minimum volume as an audible minimum volume in response to receiving a first confirmation instruction of the minimum volume for each test frequency point;
a second marking unit 43 for marking the maximum sound volume as an audible maximum sound volume in response to receiving a second confirmation instruction of the maximum sound volume for each test frequency point;
a generating unit 44, configured to generate a minimum volume equal-loudness line according to the audible minimum volume corresponding to each test frequency point, and generate a maximum volume equal-loudness line according to the audible maximum volume corresponding to each test frequency point;
a customizing unit 45, configured to customize the sound according to the minimum volume equal loudness line and the maximum volume equal loudness line.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the customizing unit 45 includes:
a calculation module 451, configured to take the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point;
a generating module 452, configured to generate a third equal-loudness line according to the average value obtained by the calculating module; and
the customizing module 453 is configured to customize the sound according to the third equal loudness line generated by the generating module.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the customizing unit 45 further includes:
the obtaining module 454 is configured to obtain a reference equal-loudness line, where the reference equal-loudness line is an equal-loudness line obtained by performing sound customization according to big data;
a comparison module 455, configured to compare the third equal-loudness line with the reference equal-loudness line, and determine whether the volumes for the same test frequency point are the same;
the compensation module 456 is configured to compensate the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line at the same test frequency point is lower than the volume of the reference equal-loudness line; and
and the attenuation module 457 is used for attenuating the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the method further includes:
a storage unit 46, configured to store the customized sound in association with a user who issues the first confirmation instruction and the second confirmation instruction.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the method further includes:
A first determining unit 47 for determining a minimum volume of the test audio as the audible minimum volume in response to not receiving a first confirmation instruction of the minimum volume for each test frequency point;
and a second determining unit 48, configured to determine, in response to not receiving a second confirmation instruction for the maximum volume of each test frequency point, the maximum volume of the test audio as the audible maximum volume.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the playing unit 41 includes:
an acquisition module 411, configured to acquire an audio signal corresponding to the test audio; and
the playing module 412 is configured to process the audio signal by digital signal processing, control the volume according to a preset playing time and the preset volume sequence, and play the processed audio signal at each of the plurality of test frequency points through a speaker.
According to an implementation manner of the embodiment of the application, the preset frequency range is 20Hz-20KHz.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the apparatus further includes:
a first dividing unit 49 for dividing the frequency range into 32 frequency intervals according to 1/3 octaves; and
The first selecting unit 4010 is configured to select frequency points corresponding to endpoints of the 32 frequency intervals as the plurality of test frequency points.
According to an implementation manner of the embodiment of the present application, as shown in fig. 5, the apparatus further includes:
a second dividing unit 4011 for dividing the frequency range into 12 frequency bins on average; and
the second selecting unit 4012 is configured to select frequency points corresponding to endpoints of the 12 frequency intervals as the plurality of test frequency points.
The device, the electronic equipment and the storage medium for customizing the sound provided by the disclosure firstly respond to receiving a first confirmation instruction of the minimum volume of each test frequency point, mark the minimum volume as an audible minimum volume, secondly respond to receiving a second confirmation instruction of the maximum volume of each test frequency point, mark the maximum volume as an audible maximum volume of each test frequency point, generate a minimum volume equal-sound line according to the audible minimum volume, generate a maximum volume equal-sound line according to the audible maximum volume, and finally customize the sound according to the minimum volume equal-sound line and the maximum volume equal-sound line, and can greatly improve the hearing feeling of a user on the sound effect of the vehicle by customizing the sound.
The foregoing explanation of the method embodiment is also applicable to the apparatus of this embodiment, and the principle is the same, and this embodiment is not limited thereto.
According to embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.
Fig. 6 illustrates a schematic block diagram of an example electronic device 600 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.
As shown in fig. 6, the apparatus 600 includes a computing unit 601 that can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 602 or a computer program loaded from a storage unit 608 into a RAM (Random Access Memory ) 603. In the RAM 603, various programs and data required for the operation of the device 600 may also be stored. The computing unit 601, ROM 602, and RAM 603 are connected to each other by a bus 604. An I/O (Input/Output) interface 605 is also connected to bus 604.
Various components in the device 600 are connected to the I/O interface 605, including: an input unit 606 such as a keyboard, mouse, etc.; an output unit 607 such as various types of displays, speakers, and the like; a storage unit 608, such as a magnetic disk, optical disk, or the like; and a communication unit 609 such as a network card, modem, wireless communication transceiver, etc. The communication unit 609 allows the device 600 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The computing unit 601 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing units 601 include, but are not limited to, a CPU (Central Processing Unit ), a GPU (Graphic Processing Units, graphics processing unit), various dedicated AI (Artificial Intelligence ) computing chips, various computing units running machine learning model algorithms, DSPs (Digital Signal Processor, digital signal processors), and any suitable processors, controllers, microcontrollers, and the like. The computing unit 601 performs the respective methods and processes described above, for example, a method of customizing sound. For example, in some embodiments, the method of customizing sound may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 608. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 600 via the ROM 602 and/or the communication unit 609. When the computer program is loaded into RAM 603 and executed by the computing unit 601, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 601 may be configured to perform the aforementioned method of customizing sound by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit System, FPGA (Field Programmable Gate Array ), ASIC (Application-Specific Integrated Circuit, application-specific integrated circuit), ASSP (Application Specific Standard Product, special-purpose standard product), SOC (System On Chip ), CPLD (Complex Programmable Logic Device, complex programmable logic device), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory, erasable programmable read-Only Memory) or flash Memory, an optical fiber, a CD-ROM (Compact Disc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display ) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network ), WAN (Wide Area Network, wide area network), internet and blockchain networks.
The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service ("Virtual Private Server" or simply "VPS") are overcome. The server may also be a server of a distributed system or a server that incorporates a blockchain.
It should be noted that, artificial intelligence is a subject of studying a certain thought process and intelligent behavior (such as learning, reasoning, thinking, planning, etc.) of a computer to simulate a person, and has a technology at both hardware and software level. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, big data processing, and the like; the artificial intelligence software technology mainly comprises a computer vision technology, a voice recognition technology, a natural language processing technology, a machine learning/deep learning technology, a big data processing technology, a knowledge graph technology and the like.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel or sequentially or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (11)
1. A method of customizing sound, comprising:
controlling the volume according to a preset volume sequence, and playing test audio corresponding to each test frequency point in a plurality of test frequency points, wherein the plurality of test frequency points are selected from a preset frequency range;
in response to receiving a first confirmation instruction of the minimum volume of each test frequency point, marking the minimum volume as an audible minimum volume;
in response to receiving a second confirmation instruction of the maximum volume of each test frequency point, marking the maximum volume as an audible maximum volume;
generating a minimum volume equal-sound line according to the audible minimum volume corresponding to each test frequency point, and generating a maximum volume equal-sound line according to the audible maximum volume corresponding to each test frequency point;
customizing sound according to the minimum volume equal-loudness line and the maximum volume equal-loudness line;
the customizing sound according to the minimum volume equal loudness contour and the maximum volume equal loudness contour includes:
taking the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point, and generating a third equal-loudness line according to the average value; customizing the sound according to the third equal loudness line;
Or, acquiring a reference equal-loudness line, wherein the reference equal-loudness line is an equal-loudness line obtained by carrying out sound customization according to big data;
comparing the third equal-loudness line with the reference equal-loudness line, and determining whether the volume of the same test frequency point is the same;
if the volume of the third equal-loudness line is lower than the volume of the reference equal-loudness line at the same test frequency point, compensating the volume of the third equal-loudness line; and
and if the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point, attenuating the volume of the third equal-loudness line.
2. The method of customizing sound according to claim 1, further comprising:
and storing the customized sound in association with a user who issues the first confirmation instruction and the second confirmation instruction.
3. A method of customizing sound according to any one of claims 1 to 2, the method further comprising:
in response to not receiving a first confirmation instruction of the minimum volume of each test frequency point, determining the minimum volume of the test audio as the audible minimum volume; and/or
And in response to not receiving a second confirmation instruction of the maximum volume of each test frequency point, determining the maximum volume of the test audio as the audible maximum volume.
4. The method of customizing sound according to any one of claims 1 to 2, wherein playing the test audio corresponding to each of the plurality of test frequency points in the preset volume order comprises:
acquiring an audio signal corresponding to the test audio; and
after the audio signal is processed by the digital signal, controlling the volume according to the preset playing time and the preset volume sequence, and playing the audio signal processed by each of the plurality of test frequency points through a loudspeaker.
5. The method of customizing sound according to claim 1, wherein the predetermined frequency range is 20Hz-20KHz.
6. The method of customizing sound according to claim 5, further comprising:
the frequency range is set to be 32 frequency intervals according to 1/3 octave; and
and selecting the frequency points corresponding to the endpoints of the 32 frequency intervals as the plurality of test frequency points.
7. The method of customizing sound according to claim 5, further comprising:
dividing the frequency range into 12 frequency intervals on average; and
and selecting the frequency points corresponding to the endpoints of the 12 frequency intervals as the plurality of test frequency points.
8. An apparatus for customizing sound, comprising:
the playing unit is used for playing the test audio corresponding to each frequency point in the plurality of test frequency points according to the preset volume sequence, wherein the plurality of test frequency points are selected from a preset frequency range;
a first marking unit for marking the minimum volume as an audible minimum volume in response to receiving a first confirmation instruction of the minimum volume for each test frequency point;
a second marking unit for marking the maximum sound volume as an audible maximum sound volume in response to receiving a second confirmation instruction of the maximum sound volume for each test frequency point;
the generating unit is used for generating a minimum volume equal-sound line according to the audible minimum volume corresponding to each test frequency point and generating a maximum volume equal-sound line according to the audible maximum volume corresponding to each test frequency point;
the customizing unit is used for customizing the sound according to the minimum volume equal-loudness line and the maximum volume equal-loudness line;
the customizing unit includes:
the calculation module is used for taking the average value of the minimum volume equal-loudness line and the maximum volume equal-loudness line at each test frequency point;
The generation module is used for generating a third equal-loudness line according to the mean value obtained by the calculation module;
the customization module is used for customizing the sound according to the third equal-loudness lines generated by the generation module;
the acquisition module is used for acquiring a reference equal-loudness line, wherein the reference equal-loudness line is an equal-loudness line obtained by carrying out sound customization according to big data;
the comparison module is used for comparing the third equal-loudness line with the reference equal-loudness line and determining whether the volume of the same test frequency point is the same;
the compensation module is used for compensating the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line is lower than the volume of the reference equal-loudness line at the same test frequency point; and
and the attenuation module is used for attenuating the volume of the third equal-loudness line when the comparison module determines that the volume of the third equal-loudness line is higher than the volume of the reference equal-loudness line at the same test frequency point.
9. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-7.
10. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of any one of claims 1-7.
11. A computer program product comprising a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1-7.
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